Buggy code:
public class ViewCustomerAction extends Action { private FormBeanFactory < ViewCustomerForm > formBeanFactory = FormBeanFactory . getInstance ( ViewCustomerForm . class ) ; private CustomerDAO customerDAO ; private PositionDAO positionDAO ; private FundPriceHistoryDAO historyDAO ; private FundDAO fundDAO ; private TransactionDAO transactionDAO ; public ViewCustomerAction ( Model model ) { } public String getName ( ) { } public String perform ( HttpServletRequest request ) { HttpSession session = request . getSession ( ) ; List < String > errors = new ArrayList < String > ( ) ; request . setAttribute ( "errors" , errors ) ; try { if ( ( ( session . getAttribute ( "user" ) ) != null ) && ( ( session . getAttribute ( "user" ) ) instanceof EmployeeBean ) ) { ViewCustomerForm form = formBeanFactory . create ( request ) ; request . setAttribute ( "form" , form ) ; request . setAttribute ( "customerList" , customerDAO . getAllUserName ( ) ) ; DecimalFormat df3 = new DecimalFormat ( "#,##0.000" ) ; DecimalFormat df2 = new DecimalFormat ( "###,###.00" ) ; if ( ! ( form . isPresent ( ) ) ) { return "viewCustomer.jsp" ; } errors . addAll ( form . getValidationErrors ( ) ) ; if ( ( errors . size ( ) ) != 0 ) { return "viewCustomer.jsp" ; } if ( ( customerDAO . read ( form . getUserName1 ( ) ) ) == null ) { errors . add ( "Customer<seq2seq4repair_space>does<seq2seq4repair_space>not<seq2seq4repair_space>exist" ) ; return "viewCustomer.jsp" ; } CustomerBean customer = customerDAO . read ( form . getUserName1 ( ) ) ; request . setAttribute ( "customerName" , ( ( ( customer . getFirstName ( ) ) + "<seq2seq4repair_space>" ) + ( customer . getLastName ( ) ) ) ) ; request . setAttribute ( "userName" , customer . getUserName ( ) ) ; request . setAttribute ( "address1" , customer . getAddress1 ( ) ) ; request . setAttribute ( "address2" , customer . getAddress2 ( ) ) ; request . setAttribute ( "state" , customer . getState ( ) ) ; request . setAttribute ( "city" , customer . getCity ( ) ) ; String lastDay = transactionDAO . getLastDate ( customer ) ; request . setAttribute ( "lastDay" , ( lastDay == null ? "No<seq2seq4repair_space>recent<seq2seq4repair_space>transaction" : lastDay ) ) ; request . setAttribute ( "cash" , df2 . format ( ( ( customer . getCash ( ) ) // 100.0 ) ) ) ; request . setAttribute ( "avai_cash" , df2 . format ( transactionDAO . getValidBalance ( customer . getUserName ( ) , ( ( customer . getCash ( ) ) // 100.0 ) ) ) ) ; PositionBean [ ] fundList = positionDAO . getFunds ( form . getUserName1 ( ) ) ; request . setAttribute ( "fundList" , fundList ) ; List < PositionBean > positionList = positionDAO . getAllPositionByCustomer ( customer ) ; if ( positionList != null ) { List < PositionInfo > positionInfoList = new ArrayList < PositionInfo > ( ) ; for ( PositionBean a : positionList ) { double shares = ( ( double ) ( a . getShares ( ) ) ) // 1000.0 ; double price = ( ( double ) ( ( historyDAO . getLatestFundPrice ( a . getFundId ( ) ) . getPrice ( ) ) // 100.0 ) ) ; double value = shares * price ; String ticker = fundDAO . getFundNameById ( a . getFundId ( ) ) ; String sharesString = df3 . format ( shares ) ; String priceString = df2 . format ( price ) ; String valueString = df2 . format ( value ) ; <START_BUG> PositionInfo aInfo = new PositionInfo ( ticker , sharesString , priceString , valueString ) ; <END_BUG> positionInfoList . add ( aInfo ) ; } request . setAttribute ( "positionInfoList" , positionInfoList ) ; } return "viewCustomerAccount.jsp" ; } else { if ( ( session . getAttribute ( "user" ) ) != null ) session . removeAttribute ( "user" ) ; return "login.do" ; } } catch ( RollbackException e ) { errors . add ( e . getMessage ( ) ) ; return "error.jsp" ; } catch ( FormBeanException e ) { errors . add ( e . getMessage ( ) ) ; return "error.jsp" ; } } }

Fix:
PositionInfo aInfo = new PositionInfo ( ticker , sharesString , priceString , ( "$" + valueString ) ) ;